Expression, equality, inequality
Tell expressions, equalities and inequalities apart, cross out false equalities and compare expressions without calculating. Ukrainian grade 2: numerical expressions, signs =, < and >.
- أوكرانيا: الصف ٢
- روسيا: الصف ٢
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الدليل
A studio for Ukrainian grade 2 (the NUS textbook section «Exploring mathematical expressions, equalities and inequalities»). A record made of numbers and operation signs, such as 14 + 25 or 35 − 24, is an expression. When two expressions or numbers are joined by =, it is an equality: 24 = 24, 15 = 14 + 1. A record with < or > is an inequality: 75 > 34, 14 < 15.
An equality can be true or false. 6 + 3 = 9 is a true equality, 6 + 3 = 10 is a false one.
In the first three tasks tap the records that do not fit: they are crossed out and only the right ones stay. In the last task choose the sign without calculating the values.